Species abundance and insecticide resistance of Anopheles gambiae in selected areas of Ghana and Burkina Faso |
| |
Authors: | Yawson A E McCall P J Wilson M D Donnelly M J |
| |
Affiliation: | Vector Research Group, Liverpool School of Tropical Medicine, Liverpool, UK. |
| |
Abstract: | The Ghanaian National Malaria Control Programme has prioritized insecticide-treated materials as a key strategy for malaria control. We report on a survey of the distribution of the molecular forms of Anopheles gambiae Giles (Diptera: Culicidae) and insecticide resistance (the kdr mutation), carried out by sampling mosquitoes from 11 locations in Ghana and one additional site in Burkina Faso. The molecular M and S forms of An. gambiae were found to occur in sympatry in southern Ghana. The S form predominated throughout its distribution in the coastal savannah, except at one location in the strand and mangrove zone where rice was cultivated. The M form was the only form collected in northern Ghana and was the predominant form (97.5%) in Burkina Faso. No M/S hybrids were detected. The kdr mutation was observed at very high frequencies (98-100%) within the S form but reached a maximum of only 3.38% in the M form in one population at an irrigation scheme in the Ghanaian coastal savannah zone. |
| |
Keywords: | Anopheles gambiae introgression kdr mutation malaria pyrethroids selection sympatry Ghana |
本文献已被 PubMed 等数据库收录! |